Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:08:16 2012 Optimize a model with 1455 rows, 812 columns and 5038 nonzeros Presolve removed 282 rows and 2 columns Presolve time: 0.06s Presolved: 1173 rows, 810 columns, 4254 nonzeros Variable types: 0 continuous, 810 integer (810 binary) Found heuristic solution: objective 28.0000000 Root relaxation: objective 3.000000e+00, 841 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (1962 simplex iterations) in 0.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%